os.listdir()上的Python IOError 102

时间:2013-08-30 22:42:13

标签: python file ioerror listdir

我制作了一个脚本,它会给我一个目录并给我一些关于它的统计数据...... 这是脚本:

import os 
import hashlib
import platform
import sys
import argparse
import HTML

class Map(object):

    def __init__(self,param):
        self.param_list = param
        self.slash = self.slash_by_os()
        self.result_list = []
        self.os = ""


    def calc_md5(self,file_path):
        with open(file_path) as file_to_check:
            data = file_to_check.read()    
            md5_returned = hashlib.md5(data).hexdigest()

        return md5_returned

    def slash_by_os(self):
        general_id = platform.system()
        actual_os = ""

        if general_id == "Darwin" or general_id == "darwin":
            actual_os = "UNIX"
        elif general_id == "Linux" or general_id == "linux":
            actual_os = "UNIX"
        elif general_id  == "SunOS":
            actual_os = "UNIX"
        elif general_id == "Windows" or general_id == "windows":
            actual_os = "WIN"
        else:
            actual_os = general_id

        if actual_os == "UNIX":
            return '/'
        elif actual_os == "WIN":
            return '\\'
        else:
            return '/'

        self.os = actual_os

    def what_to_do(self,new_dir):
        act = []
        act.append(new_dir[:-1])
        for param in self.param_list:
            if param == "md5":
                x = self.calc_md5(new_dir[:-1])
                act.append(x)
            elif param == "size":
                x = os.stat(new_dir[:-1]).st_size
                act.append(x)
            elif param == "access":
                x = os.stat(new_dir[:-1]).st_atime
                act.append(x)
            elif param == "modify":
                x = os.stat(new_dir[:-1]).st_mtime
                act.append(x)
            elif param == "creation":
                    x = os.stat(new_dir[:-1]).st_ctime
                    act.append(x)   

        return act

    def list_of_files(self ,dir_name ,traversed = [], results = []): 

        dirs = os.listdir(dir_name)
        if dirs:
            for f in dirs:
                new_dir = dir_name + f + self.slash
                if os.path.isdir(new_dir) and new_dir not in traversed:
                    traversed.append(new_dir)
                    self.list_of_files(new_dir, traversed, results)
                else:
                    act = self.what_to_do(new_dir)
                    results.append(act)
        self.result_list = results  
        return results


def parse_args():
    desc = "Welcom To dirmap.py 1.0"
    parser = argparse.ArgumentParser(description=desc)
    parser.add_argument('-p','--path', help='Path To Original Directory', required=True)
    parser.add_argument('-md','--md5', action = 'store_true',help='Show md5 hash of file', required=False)
    parser.add_argument('-s','--size', action = 'store_true', help='Show size of file', required=False)
    parser.add_argument('-a','--access', action = 'store_true',  help='Show access time of file', required=False)
    parser.add_argument('-m','--modify', action = 'store_true', help='Show modification time of file', required=False)
    parser.add_argument('-c','--creation', action = 'store_true', help='Show creation of file', required=False)

    args = vars(parser.parse_args())

    params = []
    for key,value in args.iteritems():
        if value == True:
            params.append(key)

    return args,params



def main():
    args , params = parse_args() 
    dir_path = args['path']
    map = Map(params)
    dir_list = map.list_of_files(dir_path)

    params.insert(0,"path")


    htmlcode_dir = HTML.table(dir_list,header_row=params)
    print htmlcode_dir

main()

在linux上运行时我得到了这个追溯:

  

MacBook-Pro:Python脚本Daniel $ python dirmap.py -p / -md -s -a -m   -c>> 1.html回溯(最近一次调用最后一次):文件“dirmap.py”,第132行,在main()文件“dirmap.py”,第124行,在主dir_list =   map.list_of_files(dir_path)文件“dirmap.py”,第89行,in   list_of_files act = self.what_to_do(new_dir)文件“dirmap.py”,行   61,在what_to_do x = self.calc_md5(new_dir [: - 1])文件“dirmap.py”中,   第25行,在calc_md5中,open(file_path,'rb')为file_to_check:   IOError:[Errno 102]套接字不支持操作:   '/.dbfseventsd'

我怎么能解决我的问题?谢谢!

1 个答案:

答案 0 :(得分:1)

问题是open()在扫描各种文件时在套接字上运行。你应该能够通过try / catch解决这个问题,方法是捕获IOError。例如:

try:
    with open(file_path) as file_to_check:
        data = file_to_check.read()    
        md5_returned = hashlib.md5(data).hexdigest()
except IOError as ioe:
    print "Failed: " + str(ioe)

但这会捕获所有io错误,而不仅仅是套接字。如果您需要一个处理此特定方案的错误消息,则需要在尝试打开它之前检查它是否为套接字。 有关如何检查文件是否为套接字,请参阅this

另外,我注意到您手动检查要使用哪个文件分隔符的平台。它内置为'os.path.sep'。查看python os.path模块,了解更多与平台无关的遍历文件系统的方法。